Theoretical Status of Neutrino Physics

Abstract

In the framework of renormalisable relativistic quantum field theory, the explanation of neutrino masses necessarily requires the existence of new physical states. These new states may also be responsible for other unexplained phenomena in particle physics and cosmology. After a brief introduction, I focus on scenarios in which the neutrino masses are generated by the type-I seesaw mechanism and review the phenomenological implications of different choices of the seesaw scale.

Comments: 21 pages, 17 figures, 1 table. This mini-review is based on my talk at the 16th International Workshop on Neutrino Factories and Future Neutrino Beam Facilities (NUFACT2014)